Evaluation of the bias associated with the use of a Nafion® dryer in the analyses of certain polar and nonpolar organic compounds

Persistent Link:
http://hdl.handle.net/10150/291624
Title:
Evaluation of the bias associated with the use of a Nafion® dryer in the analyses of certain polar and nonpolar organic compounds
Author:
Krotenberg, Marshall Eric, 1962-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Recovery rates of certain polar and non-polar volatile organic compounds were evaluated for bias associated with the use of a Nafion® dryer in the analyses of environmental samples. Analyses of dryer inlet verses dryer outlet concentrations of specific compounds were used to assess the extent of Nafion® bias. A select group of 22 polar and 6 non-polar compounds, as well as historical data from other authors was used to develop a stepwise multiple regression model to aid in predicting recovery rates. Specific compound physical parameters used in this model include water solubility, hydrogen bonding capacity, and dipole moment. The overall R squared or predictive value of this model is 0.7885. Typical recovery rates of non-polar and extremely polar compounds are 100% and <10% respectively. Compounds that possess moderate intermolecular interactions (aldehydes, ethers, esters, and ketones) resulted in recovery rates between 10% and 100%.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Chemistry, Analytical.; Environmental Sciences.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Toxicology/Industrial Hygiene
Degree Grantor:
University of Arizona
Advisor:
Crutchfield, Clifton

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEvaluation of the bias associated with the use of a Nafion® dryer in the analyses of certain polar and nonpolar organic compoundsen_US
dc.creatorKrotenberg, Marshall Eric, 1962-en_US
dc.contributor.authorKrotenberg, Marshall Eric, 1962-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractRecovery rates of certain polar and non-polar volatile organic compounds were evaluated for bias associated with the use of a Nafion® dryer in the analyses of environmental samples. Analyses of dryer inlet verses dryer outlet concentrations of specific compounds were used to assess the extent of Nafion® bias. A select group of 22 polar and 6 non-polar compounds, as well as historical data from other authors was used to develop a stepwise multiple regression model to aid in predicting recovery rates. Specific compound physical parameters used in this model include water solubility, hydrogen bonding capacity, and dipole moment. The overall R squared or predictive value of this model is 0.7885. Typical recovery rates of non-polar and extremely polar compounds are 100% and <10% respectively. Compounds that possess moderate intermolecular interactions (aldehydes, ethers, esters, and ketones) resulted in recovery rates between 10% and 100%.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectChemistry, Analytical.en_US
dc.subjectEnvironmental Sciences.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineToxicology/Industrial Hygieneen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorCrutchfield, Cliftonen_US
dc.identifier.proquest1349462en_US
dc.identifier.bibrecord.b27692620en_US
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